Detailed Description  KYZ9040 is car repeater. it can use in car or small area in room. It can amplify the signal for the mobile phone, making you keep in touch with others freely even in the place without signal or with weak signal.   1. Features Adopt two ports full-duplex design Practical, beautiful and easy to install Good reliability, meet the standard of GB6993-86 The compatibility of electromagnetism meets the standard of ETS300 609-4 2 Technique specification Specification KYZ9040Frequency rangeUL890-915 MHzDL935-960 MHzGain (dB)ULGp ≥ 40dBDLGp ≥ 40dBExport power (Po)15mW15mWI/O impedance50Ω/N connector ( SMA )Power supplyDC 12 VTemperature range - 25 to + 55Humidity relative 5 to 95Coverage50-15050-150